It is well known that the characteristics of an ion current recorded by an electrostatic probe depend not only on the ion density distribution near the reaction zone but also on the flame configuration and movement. Therefore, it is expected that the configuration of turbulent premixed flames can be examined by analyzing the ion current record obtained in a turbulent flame brush. In the present study, an attempt has been made to elucidate the dependence of the characteristics of ion currents on the curvature and movement of flame. It is shown that even though the local flame curvature is constant, the ion current changes its profile significantly with changes in the flame movement. As the angle between the flame front and the probe axis increases, the maximum ion current decreases and the half value period increases. As the distance from the center of flame curvature to the midpoint of a probe sensor increases, the half value period increases.